Level and rule measuring instrument.



T. SLDE LAY.

LEVEL AND RUL-E MEASURING INSTRUMENT. APPLICATION man June Il. 1917.

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@D STATES PATENT OFFICE renoncer. s. DELAY, or cansroiv, iowA.

LEVEL ANDl RULE MEAsURrNG INSTRUMENT. i

To all 07mm it may concern; Y

,Beit known that I, THEoDoRuSfD LAY,

l a citizen of the United States of America, ,s and resident of Creston, in the county of .Union and State of Iowa, rhavelinventedxa new .and useful Level and Rule Measuring Instrument, of whichthe following isl a specification. v

, `The Object of this inventan ist@ provide meansrfor quickly, easily and somewhat accurately determining the horizontal distance between andthe/,relative Velevation of two points whichV are in different horizontal planes, suchas insetting curb or sidewalk grades from gradeV stakes not set to grade,

y the proper grade beingV determined by a j drawing,

given measurement above or below the stake. A furthe-r object of this Iinvention isto provide an improved tool combining a level and measuring stick or rule.

A further object of this invention is to provide an improved tool combining a level and two measuring sticks or rules mounted adjustably and at right angles to each other.

A further object of this invention is to provide a convenient means of adjustment and connection between a level and rule.

A further object of thisy invention is to combine a level and measure `thereon with a measuring stick or rule adjustable longitudinally of said level and forming a continuation or extension of said measure.

A furtherobject of this invention is to combine a level and measure thereon with a measuring stick or rule and means for adjustably connecting said rule and level substantially at right angles to each other.

My invention consists in the construction, arrangement and combination ofy elementshereinafter set forth, Apointed 'out in my claims vand illustrated by the accompanying in which- Figure 1 is an elevation of the .device illustrating the manner of its use indetermining a grade in a plane below the horizontal plane of the top of a grade stake.

Fig. 2 is an elevation o e device fromV the opposite side and illustrating the` manner of its use in determining a grade in a plane above the horizontal plane of the top. of a grade stake.

Figs. 3 and 4 ends of the tool. Y

Y In the construction of the tool as shown the numeral 10 designates generally a hand level of common formused` by carpenters',

are elevations of opposite faces of the level.l c Y fixed to or formed o r imprinted on either or thereof.

measuring stick or ruley 14a, is slidinglyl level 8 inches.

A specieeauon of Letters Patent. I Patented Aug. 6,1918. Applicationfled .Tune 11, Serial No. 7175,955.- L I y Vmasons and mechanics generally. A slide 10. A measuring stick or rule 12 of ap- `proximately Arigid character is mounted slidingly between thebearing 11'a`nd adjacent endof the level 10,' and Said rule is held in any positionk in which itis placed manually by al set screw vor other compression device 13, seated in the bearing and engaging the rulel The rule 12 preferably/is arranged at rightfangles toV and may project at either endvfroniv the V,upper and lower A measure or rule 141 is both sides ofthe level' near ,to a lower edge Another =measure, preferably a mounted in a longitudinal groove formed 1n the lower face of the level and is held in place by a plate 14 fixed to said lower face. The groove in which the stick 148L is mounted intersects a hole or aperture 14C so that the stick 14a may be adjusted longitudinally by lingers of the user inserted in said hole. The measuring stick or rule 14a forms a continuation or extension of the measure 14: at times.

In practical use, to determine a grade in a Vhorizontal plane below the ground surface at a grade stake such as 15, which in this instance ismarked -8, the rule 12 is set to extend beyond the lower 4face of the Then an excavation 16 is vat the desired distance made, if necessary,

grade stake 15 to such laterally from the extent that the level 10 may be supported,

in approximately level positionas self-in dicated, at one end by said grade stakeand at the other end by the rule, the latter resting on the bottom of the excavation.

To determine a grade in a horizontal plane above the ground surface at a grade stake such as 17, which in this instance is marked +8, the rule 12 is set to extend beyond the. lower face of the level 10 eight inches. Then a temporary stake 18 is set at a point laterally removed from the stake 17 at such an elevation that itwill sup` port one end of the level, in approximately level position as self-indicated, the other end of the level being carried by the krule resting on the top of the-grade stake 17.

In either instance, the horizontal distance between the grade stake, 15 or 17, and any other point in thelength of the level 10,`

may be read on the rule 14 on either side of said level.

lVhen the horizontal distance between the grade stake and the point 'of rest of the other end of the level, such as on the rule l2 or stake 18, 1s too great to be compassed by the length of the level, the stick or rule 14LL may be extended from the 4level and be employed as an extension of said level to provide support Vtorrone end thereof. In such position the horizontal distance may be read on the measure 14 plus the extended portion of the rule 14u.

The rule 12 may be removed from the bearing 11 and be placed parallel with the level 10 for convenience in transporting or packing.

I Claim as my invention- 1. Mea-ns for determining the horizontal distance between and the relative elevation of two points which are in diferent horizontal planes, comprising a level, said level being provided with indices of linear meas* urement, a rule, and means for mounting said rule adjustably on and adapted for movement in level.

2. 'The combination of a bar level formed with a slide-bearing and extending' from end to end of its bar, a rule slidingly mounted in and adapted to project at one end only from said bearing, there being a handhole through the bar of said level and intersecting said bearing, said rule extending laterally into said hole.

'3. he combination of a bar level having a measure on one or more of the faces of its bar and extending from end to end thereof, said level being,` formed with a slidea plane at right angles to said bearing' in and extending` from end 4to end n Vof its bar, a rule mounted and adjustable Slidi'ngly in said bearing and adapted to pro- Vject at kone end only therefrom and forming at times AanV extension of said measure on the level bar, and another rule mounted transversely of, on'and extending across the level bar, *and kalso extending across the measure thereon and the first rule.

THEODORE S. DE LAY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner ailments. Weshington, ZD. C. i 

